It's soon going to be officially celebrated as the only film in the world featuring the father-son duo reversing their real-life roles for the screen.

Amitabh and Abhishek Bachchan, fresh from the success of Paa, have shot for a crazy cover of Hi! Blitz magazine. The father-son duo unveiled the cover in Mumbai recently.

Auro (Amitabh) is a 12 year progeria infected kid living with his gynecologist mother Vidya (Vidya Balan) and her mother (Arundhati Naag).

After making Cheeni Kum with Amitabh Bachchan, director R Balakrishnan aka Balki has decided to explore a completely different genre.

Amitabh Bachchan’s much-awaited “Paa”, in which Big B plays a 13-year-old boy suffering from progeria that accelerates the ageing process, will release Friday in 20 countries with 700 prints, including digital.